In the control group, how did the number of grass blades change over the three week period?
In the experimental group, how did the number of grass
blades change over the three week period?
Was there a measureable difference in the number of
grass blades between the control group and the
experimental group at the end of three weeks?

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.

answer; i believe the correct answer is (a)0

six grader is what i am ssorry

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek